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I have a 2000 Hewes Bonefisher 18 powered by a 1999 Yamaha
I have a 2000 Hewes Bonefisher 18 powered by a 1999 Yamaha 130. WOT is 4700 rpm and hole shot is poor. Thinking it is the prop which is a 3 blade SS 13.25x19. The prop is probably ten years old, decen… read more
Ted G.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
1,074 satisfied customers
i have 1996 excel 23 wellcraft, two 115 optimax 2006, what
i have 1996 excel 23 wellcraft, two 115 optimax 2006, what is the propeller size that i need for best speed… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
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Im prop shopping and need some good answers on buying a spare
I'm prop shopping and need some good answers on buying a spare and maybe a replacement main prop. I recently bought a used 2003 Alumacraft Tournament PRO 175 CS. It's a single console deep V, 17' 11” … read more
Jason
Jason
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Vocational, Technical or Trade School
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rebuilt 260 hp engine installed in 1972 grew [merc] tried 4
rebuilt 260 hp engine installed in 1972 grew [merc] tried 4 props last being 23 pitch alum rpm 5500 should be max 4800 mechanic suggests 23 pitch ss local propellar guy provided 25 and 27 pitch al and… read more
K. Kergan
K. Kergan
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I have a 2003 Johnson 90 hp 4 Stroke Bombardier electronic
I have a 2003 Johnson 90 hp 4 Stroke Bombardier electronic fuel injection engine. I purchased toe pontoon and motor in march. We have used the pontoon and have had the boat loaded with six (6) adults.… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 31 ft boat in Brazil. Comfortable but weighs 5200
I have a 31 ft boat in Brazil. Comfortable but weighs 5200 lbs. It has a VP 5.7 Gxi with f2 duo props. Can't get over 4800 rpm for a speed of 34 mph max. Guess that's to be expected for this package o… read more
K. Kergan
K. Kergan
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Vocational, Technical or Trade Scho
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I have a 2005 115 hp 4 stoke EFI engine. It doesnt seem to
I have a 2005 115 hp 4 stoke EFI engine. It doesn't seem to deliver the performance I think it should. It came to me with a 17" prop and would only tach about 4800 rpms. I changed to a 15 and it gets … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
19,989 satisfied customers
I recently ran my boat and on ocassion I top it out for a minute
I recently ran my boat and on ocassion I top it out for a minute it usually will get around 4700 rpms now it will max at 4200rpm with motor trimmed up. I changed the plugs and water seperator.… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
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being told all diff things what is the max rpm and what is
being told all diff things what is the max rpm and what is the best prop to use to acheieve this with out over reving the boat is a 98 bayliner capri with the 3.0l(NNN) NNN-NNNNmodel… read more
Captain Dave
Captain Dave
Marine Mechanic
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I have a sp 175 Triton aluminum with a 75 hp optimax. I just
I have a sp 175 Triton aluminum with a 75 hp optimax. I just bought it this week. Is this a 3 or 4 cyclinder motor. I am only turning about 4000 rpm but I am running out at about 44 or 45 mph. I like … read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
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I have a 1975 850 mercury outboard. I need to know max rpms
I have a 1975 850 mercury outboard. I need to know max rpms to get a new prop. I do a lot of bass fishing and just a little bit of water skiing. I am looking for a good medium to fit the bill. The boa… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
Background I have a 18 Keylargo w/ wt. limit of 650 load
Background: I have a 18' Keylargo w/ wt. limit of 650 load (1200 lbs total) with a 90 HP 2-strok Yamaha. The WOT max's out at 4800 and according to Yamaha 5500 RPM WOT. I can only can 26 Knts. Prop 13… read more
shane j forrest
shane j forrest
Vocational, Technical or Trade Scho
270 satisfied customers
I have a H56TS Xpress boat with a 150hp V-Max 2 stroke...No
I have a H56TS Xpress boat with a 150hp V-Max 2 stroke...No jackplate...original prop now broken was SS 14 1/2x23...been searching for another prop but getting to much feed back...my question is whats… read more
Larry B.
Larry B.
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High School or GED
574 satisfied customers
I have a 2005 Tracker V-18 Tournament bass boat with a 90hp
I have a 2005 Tracker V-18 Tournament bass boat with a 90hp elpto mercury motor max rpm 5500. It currently has an aluminum 21 in pitch with 12.75 circum. prop. I am looking for a high performance stai… read more
Scott
Scott
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Vocational, Technical or Trade Scho
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I see ther are diffrent ingnition moduels for the mericruser
I see ther are diffrent ingnition moduels for the mericruser 260 with diffrent degrees of advance why is this and how do I deterim if I have the right one? the boat is a sea ray, with the mericrusier … read more
Marc C. Albertson
Marc C. Albertson
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Vocational, Technical or Trade Scho
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I just bought a 2003 Glastron SX-195 with the V-P 5.0 l carbed
I just bought a 2003 Glastron SX-195 with the V-P 5.0 l carbed engine with less than 150 hours. The engine starts immediately, runs and pulls very strongly, and doesn't display any odd behavior. But I… read more
Greg Robinson
Greg Robinson
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Vocational, Technical or Trade Scho
199 satisfied customers
I just purchased a 2008 Glass Stream 192cc boat with a 150hp
I just purchased a 2008 Glass Stream 192cc boat with a 150hp Optimax and it appears the motor was never setup correctly for the boat. The boat weighs about 1900lbs. The previous owner told me the boat… read more
Jason Forsberg
Jason Forsberg
Outboard Marine Mechanic
Vocational, Technical or Trade Scho
531 satisfied customers
What size prop should be use on a 90 hp. yamaha on an 18 ft.
What size prop should be use on a 90 hp. yamaha on an 18 ft. aluminum Xpress flats 18cc for speed and preformance. What prop usually comes with the 90 hp yamaha ?… read more
Dominick
Dominick
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Vocational, Technical or Trade Scho
1,009 satisfied customers
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

1,074 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

19,989 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,406 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,730 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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